On 10/24/2010 01:07 PM, Jorge Miguel wrote: > Hello, > > I am trying to find out the minimum/maximun input power of the ADC > LTC2284. > I know that the maximum input voltage is 1 Volt, 0.707Vrms, but what > is the input impedance? so that I can calculate the maximum input > power as: > > minimum input power (SNR ADC) = Maximun input power > ( [(0.707)/(2^14))^2]/Rin) + 72.4 dB = Maximun input power > > Am I right? > > Many thanks, > Jorge > > I believe that it's a 100ohm balanced input.
But the daughtercards all take a 50-ohm input, and convert to a balanced output just before the A/D. With the exception of the Basic_RX and LFRX, the maximum input power for any of the other daughtercards is below -10dBm. The BASIC_RX and LFRX have a maximum input power of about +10dBm. -- Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
